The mattress topper was delievered quickly, didn't smell & only took a few hours to be ready to use. I bought it for my son, who had a very hard bed. He complained daily that his back hurt bc of his bed. Now he loves to sleep in his bed! It is wonderful. Now everyone in the family wants to sleep in his bed :) My back hurts within a few minutes of laying on a normal bed flat on my back. I can lay on his bed for hours without moving & still not hurt. Soon I will be ordering one for my husband & myself. Highly reccomend! Just know that your bed with be much higher, you have to purchase new sheets & might need the sheet suspenders (they don't stay put very well).